
Cabling and Wiring the System
6-4
SIMATIC 545/555/575 System Manual
6.2 Installing Series 505 Remote I/O Cables
There are two media options for Series 505 remote I/O cabling:
• Non-redundant I/O cabling using twisted pair (RS-485) media
• Redundant I/O cabling using coaxial (RF) media
This section describes the twisted pair media. If you are installing a coaxial
I/O system, see the description of the RS-485/RF converter in Appendix C,
and follow the instructions in the SIMATIC 505 Redundant I/O Systems
User Manual, PPX:505–8125–x.
User-supplied components are listed below:
• RS-485 cables
• Taps (terminal blocks)
• 9-pin D-connectors (male) and shell
• Terminal lugs
Installation procedures for mounting taps or terminal blocks depend upon
the cable installation technique used. Refer to mounting instructions
provided by the tap or terminal block vendor.
Media Options
Equipment Needed
Mounting Taps or
Terminal Blocks
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